DataStoreChange.php

<?php
 
/*
 * This file is part of BedrockProtocol.
 * Copyright (C) 2014-2022 PocketMine Team <https://github.com/pmmp/BedrockProtocol>
 *
 * BedrockProtocol is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\protocol\types\ddui;
 
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\LE;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\cereal\DynamicValue;
use pocketmine\network\mcpe\protocol\types\cereal\DynamicValueType;
use pocketmine\network\mcpe\protocol\types\GetTypeIdFromConstTrait;
 
final class DataStoreChange implements DataStoreOperation{
    use GetTypeIdFromConstTrait;
 
    public const ID = DataStoreOperationType::CHANGE;
 
    public function __construct(
        private string $name,
        private string $property,
        private int $updateCount,
        private ?DynamicValue $data
    ){}
 
    public function getName() : string{ return $this->name; }
 
    public function getProperty() : string{ return $this->property; }
 
    public function getUpdateCount() : int{ return $this->updateCount; }
 
    public function getData() : ?DynamicValue{ return $this->data; }
 
    public static function read(ByteBufferReader $in) : self{
        $name = CommonTypes::getString($in);
        $property = CommonTypes::getString($in);
        $updateCount = LE::readUnsignedInt($in);
 
        $type = LE::readUnsignedInt($in);
        $data = DynamicValue::read($in, $type);
 
        return new self(
            $name,
            $property,
            $updateCount,
            $data,
        );
    }
 
    public function write(ByteBufferWriter $out) : void{
        CommonTypes::putString($out, $this->name);
        CommonTypes::putString($out, $this->property);
        LE::writeUnsignedInt($out, $this->updateCount);
 
        //TODO: yucky, we really need to revamp how unions are handled :(
        $type = $this->data?->getTypeId() ?? DynamicValueType::NULL;
        LE::writeUnsignedInt($out, $type);
        $this->data?->write($out);
    }
}